During the final years of world war ii, how did the allies gain control of the atlantic ocean

The Allies built many amounts of ships, anti-submarine weapons, a lot of people sacrificed themselves to take supplies from Canada and US to the UK.

Explanation:

The Allies built many amounts of ships, anti-submarine weapons, a lot of people sacrificed themselves to take supplies from Canada and US to the UK.

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.